How does Fastmail work in Monterey with 1Password 8?

I connected my Fastmail and 1Password accounts, but when I try to add a new email to Facebook, I get both Apple's popup and the 1Password autofill overlaying each other. I have to turn off "autofill from contacts information" in Safari to even see the 1Password "list" (it looks like a plain rounded rectangle, not anything familiar to my Mac eyes) but there is no create masked email option.

I am on this page, trying to add a new email: https://www.facebook.com/settings?tab=account&section=email&view

I also cannot find a way to generate an email when editing my account in 1Password 8. Selecting my email field brings up another rounded rectangle that has my existing email address in it twice.


1Password Version: 80202072, on BETA channel
Extension Version: 2.1.0
OS Version: 12.0 Beta (21A5522h)

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